src/surf/workstation.c

   1 /*      $Id$     */
   2
   3 /* Copyright (c) 2004 Arnaud Legrand. All rights reserved.                  */
   4
   5 /* This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the license (GNU LGPL) which comes with this package. */
   7
   8 #include "xbt/ex.h"
   9 #include "xbt/dict.h"
  10 #include "portable.h"
  11 #include "surf_private.h"
  12
  13 typedef struct workstation_CLM03 {
  14   s_surf_resource_t generic_resource; /* Must remain first to add this to a trace */
  15   void *cpu;
  16   int id;
  17 } s_workstation_CLM03_t, *workstation_CLM03_t;
  18
  19 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_workstation, surf,
  20                                 "Logging specific to the SURF workstation module");
  21
  22 surf_model_t surf_workstation_model = NULL;
  23
  24 static workstation_CLM03_t workstation_new(const char *name,
  25                                            void *cpu, int id)
  26 {
  27   workstation_CLM03_t workstation = xbt_new0(s_workstation_CLM03_t, 1);
  28
  29   workstation->generic_resource.model = surf_workstation_model;
  30   workstation->generic_resource.name = xbt_strdup(name);
  31   workstation->cpu = cpu;
  32   workstation->id = id;
  33
  34   xbt_dict_set(surf_model_resource_set(surf_workstation_model), name,
  35                workstation, surf_resource_free);
  36
  37   return workstation;
  38 }
  39
  40 void create_workstations(void)
  41 {
  42   xbt_dict_cursor_t cursor = NULL;
  43   char *name = NULL;
  44   void *cpu = NULL;
  45
  46   xbt_dict_foreach(surf_model_resource_set(surf_cpu_model), cursor, name, cpu) {
  47     int *id = xbt_dict_get_or_null(used_routing->host_id,name);
  48
  49     workstation_new(name, cpu, id?*id:0);
  50   }
  51 }
  52
  53 static int resource_used(void *resource_id)
  54 {
  55   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
  56 }
  57
  58 static void parallel_action_cancel(surf_action_t action)
  59 {
  60   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  61 }
  62
  63 static int parallel_action_free(surf_action_t action)
  64 {
  65   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
  66 }
  67
  68 static int action_unref(surf_action_t action)
  69 {
  70   if (action->model_type == surf_network_model)
  71     return surf_network_model->action_unref(action);
  72   else if (action->model_type == surf_cpu_model)
  73     return surf_cpu_model->action_unref(action);
  74   else if (action->model_type == surf_workstation_model)
  75     return parallel_action_free(action);
  76   else
  77     DIE_IMPOSSIBLE;
  78   return 0;
  79 }
  80
  81 static void action_cancel(surf_action_t action)
  82 {
  83   if (action->model_type == surf_network_model)
  84     surf_network_model->action_cancel(action);
  85   else if (action->model_type == surf_cpu_model)
  86     surf_cpu_model->action_cancel(action);
  87   else if (action->model_type == surf_workstation_model)
  88     parallel_action_cancel(action);
  89   else
  90     DIE_IMPOSSIBLE;
  91   return;
  92 }
  93
  94 static void ws_action_state_set(surf_action_t action,
  95                                 e_surf_action_state_t state)
  96 {
  97   if (action->model_type == surf_network_model)
  98     surf_network_model->action_state_set(action, state);
  99   else if (action->model_type == surf_cpu_model)
 100     surf_cpu_model->action_state_set(action, state);
 101   else if (action->model_type == surf_workstation_model)
 102     surf_action_state_set(action, state);
 103   else
 104     DIE_IMPOSSIBLE;
 105   return;
 106 }
 107
 108 static double share_resources(double now)
 109 {
 110   return -1.0;
 111 }
 112
 113 static void update_actions_state(double now, double delta)
 114 {
 115   return;
 116 }
 117
 118 static void update_resource_state(void *id,
 119                                   tmgr_trace_event_t event_type,
 120                                   double value, double date)
 121 {
 122   THROW_IMPOSSIBLE;             /* This model does not implement parallel tasks */
 123 }
 124
 125 static surf_action_t execute(void *workstation, double size)
 126 {
 127   return surf_cpu_model->extension.
 128     cpu.execute(((workstation_CLM03_t) workstation)->cpu, size);
 129 }
 130
 131 static surf_action_t action_sleep(void *workstation, double duration)
 132 {
 133   return surf_cpu_model->extension.
 134     cpu.sleep(((workstation_CLM03_t) workstation)->cpu, duration);
 135 }
 136
 137 static void action_suspend(surf_action_t action)
 138 {
 139   if (action->model_type == surf_network_model)
 140     surf_network_model->suspend(action);
 141   else if (action->model_type == surf_cpu_model)
 142     surf_cpu_model->suspend(action);
 143   else
 144     DIE_IMPOSSIBLE;
 145 }
 146
 147 static void action_resume(surf_action_t action)
 148 {
 149   if (action->model_type == surf_network_model)
 150     surf_network_model->resume(action);
 151   else if (action->model_type == surf_cpu_model)
 152     surf_cpu_model->resume(action);
 153   else
 154     DIE_IMPOSSIBLE;
 155 }
 156
 157 static int action_is_suspended(surf_action_t action)
 158 {
 159   if (action->model_type == surf_network_model)
 160     return surf_network_model->is_suspended(action);
 161   if (action->model_type == surf_cpu_model)
 162     return surf_cpu_model->is_suspended(action);
 163   DIE_IMPOSSIBLE;
 164 }
 165
 166 static void action_set_max_duration(surf_action_t action, double duration)
 167 {
 168   if (action->model_type == surf_network_model)
 169     surf_network_model->set_max_duration(action, duration);
 170   else if (action->model_type == surf_cpu_model)
 171     surf_cpu_model->set_max_duration(action, duration);
 172   else
 173     DIE_IMPOSSIBLE;
 174 }
 175
 176 static void action_set_priority(surf_action_t action, double priority)
 177 {
 178   if (action->model_type == surf_network_model)
 179     surf_network_model->set_priority(action, priority);
 180   else if (action->model_type == surf_cpu_model)
 181     surf_cpu_model->set_priority(action, priority);
 182   else
 183     DIE_IMPOSSIBLE;
 184 }
 185
 186 static surf_action_t communicate(void *workstation_src,
 187                                  void *workstation_dst, double size,
 188                                  double rate)
 189 {
 190   workstation_CLM03_t src = (workstation_CLM03_t) workstation_src;
 191   workstation_CLM03_t dst = (workstation_CLM03_t) workstation_dst;
 192   return surf_network_model->extension.
 193     network.communicate(surf_resource_name(src->cpu),surf_resource_name(dst->cpu),
 194         src->id,dst->id,
 195         size, rate);
 196 }
 197
 198 static e_surf_resource_state_t get_state(void *workstation)
 199 {
 200   return surf_cpu_model->extension.
 201     cpu.get_state(((workstation_CLM03_t) workstation)->cpu);
 202 }
 203
 204 static double get_speed(void *workstation, double load)
 205 {
 206   return surf_cpu_model->extension.
 207     cpu.get_speed(((workstation_CLM03_t) workstation)->cpu, load);
 208 }
 209
 210 static double get_available_speed(void *workstation)
 211 {
 212   return surf_cpu_model->extension.
 213     cpu.get_available_speed(((workstation_CLM03_t)
 214                              workstation)->cpu);
 215 }
 216
 217 static surf_action_t execute_parallel_task(int workstation_nb,
 218                                            void **workstation_list,
 219                                            double *computation_amount,
 220                                            double *communication_amount,
 221                                            double amount, double rate)
 222 {
 223   THROW_UNIMPLEMENTED;          /* This model does not implement parallel tasks */
 224 }
 225
 226
 227 /* returns an array of network_link_CM02_t */
 228 static xbt_dynar_t get_route(void *src, void *dst)
 229 {
 230   workstation_CLM03_t workstation_src = (workstation_CLM03_t) src;
 231   workstation_CLM03_t workstation_dst = (workstation_CLM03_t) dst;
 232   return surf_network_model->extension.network.get_route(workstation_src->id,
 233                                                          workstation_dst->id);
 234 }
 235
 236 static double get_link_bandwidth(const void *link)
 237 {
 238   return surf_network_model->extension.network.get_link_bandwidth(link);
 239 }
 240
 241 static double get_link_latency(const void *link)
 242 {
 243   return surf_network_model->extension.network.get_link_latency(link);
 244 }
 245
 246 static int link_shared(const void *link)
 247 {
 248   return surf_network_model->extension.network.get_link_latency(link);
 249 }
 250
 251 static void finalize(void)
 252 {
 253   surf_model_exit(surf_workstation_model);
 254   surf_workstation_model = NULL;
 255 }
 256 static xbt_dict_t get_properties(const void*ws){
 257   return surf_resource_properties(((workstation_CLM03_t)ws)->cpu);
 258 }
 259
 260 static void surf_workstation_model_init_internal(void)
 261 {
 262   surf_workstation_model = surf_model_init();
 263
 264   surf_workstation_model->name = "Workstation";
 265   surf_workstation_model->action_unref = action_unref;
 266   surf_workstation_model->action_cancel = action_cancel;
 267   surf_workstation_model->action_state_set = ws_action_state_set;
 268
 269   surf_workstation_model->model_private->resource_used = resource_used;
 270   surf_workstation_model->model_private->share_resources = share_resources;
 271   surf_workstation_model->model_private->update_actions_state =
 272     update_actions_state;
 273   surf_workstation_model->model_private->update_resource_state =
 274     update_resource_state;
 275   surf_workstation_model->model_private->finalize = finalize;
 276
 277   surf_workstation_model->suspend = action_suspend;
 278   surf_workstation_model->resume = action_resume;
 279   surf_workstation_model->is_suspended = action_is_suspended;
 280   surf_workstation_model->set_max_duration = action_set_max_duration;
 281   surf_workstation_model->set_priority = action_set_priority;
 282
 283   surf_workstation_model->extension.workstation.execute = execute;
 284   surf_workstation_model->extension.workstation.sleep = action_sleep;
 285   surf_workstation_model->extension.workstation.get_state = get_state;
 286   surf_workstation_model->extension.workstation.get_speed = get_speed;
 287   surf_workstation_model->extension.workstation.get_available_speed =
 288     get_available_speed;
 289
 290   surf_workstation_model->extension.workstation.communicate = communicate;
 291   surf_workstation_model->extension.workstation.get_route = get_route;
 292   surf_workstation_model->extension.workstation.execute_parallel_task =
 293     execute_parallel_task;
 294   surf_workstation_model->extension.workstation.get_link_bandwidth =
 295     get_link_bandwidth;
 296   surf_workstation_model->extension.workstation.get_link_latency =
 297     get_link_latency;
 298   surf_workstation_model->extension.workstation.link_shared = link_shared;
 299   surf_workstation_model->extension.workstation.get_properties = get_properties;
 300 }
 301
 302 /********************************************************************/
 303 /* The model used in MSG and presented at CCGrid03                  */
 304 /********************************************************************/
 305 /* @InProceedings{Casanova.CLM_03, */
 306 /*   author = {Henri Casanova and Arnaud Legrand and Loris Marchal}, */
 307 /*   title = {Scheduling Distributed Applications: the SimGrid Simulation Framework}, */
 308 /*   booktitle = {Proceedings of the third IEEE International Symposium on Cluster Computing and the Grid (CCGrid'03)}, */
 309 /*   publisher = {"IEEE Computer Society Press"}, */
 310 /*   month = {may}, */
 311 /*   year = {2003} */
 312 /* } */
 313 void surf_workstation_model_init_CLM03(const char *filename)
 314 {
 315   surf_workstation_model_init_internal();
 316   surf_cpu_model_init_Cas01(filename);
 317   surf_network_model_init_CM02(filename);
 318   update_model_description(surf_workstation_model_description,
 319                            "CLM03", surf_workstation_model);
 320   xbt_dynar_push(model_list, &surf_workstation_model);
 321 }
 322
 323 void surf_workstation_model_init_compound(const char *filename)
 324 {
 325
 326   xbt_assert0(surf_cpu_model, "No CPU model defined yet!");
 327   xbt_assert0(surf_network_model, "No network model defined yet!");
 328   surf_workstation_model_init_internal();
 329
 330   update_model_description(surf_workstation_model_description,
 331                            "compound", surf_workstation_model);
 332
 333   xbt_dynar_push(model_list, &surf_workstation_model);
 334 }